./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/subseq-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1feb5daa-21a2-4122-89ab-d3877e8b766d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1feb5daa-21a2-4122-89ab-d3877e8b766d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1feb5daa-21a2-4122-89ab-d3877e8b766d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1feb5daa-21a2-4122-89ab-d3877e8b766d/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/subseq-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1feb5daa-21a2-4122-89ab-d3877e8b766d/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1feb5daa-21a2-4122-89ab-d3877e8b766d/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ed241b7ea3188deab01745f11227ce75decf7bc ................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 08:18:52,221 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 08:18:52,222 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 08:18:52,228 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 08:18:52,228 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 08:18:52,229 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 08:18:52,230 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 08:18:52,230 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 08:18:52,231 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 08:18:52,232 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 08:18:52,232 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 08:18:52,232 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 08:18:52,233 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 08:18:52,233 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 08:18:52,234 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 08:18:52,234 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 08:18:52,234 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 08:18:52,235 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 08:18:52,236 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 08:18:52,237 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 08:18:52,237 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 08:18:52,238 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 08:18:52,239 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 08:18:52,239 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 08:18:52,239 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 08:18:52,240 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 08:18:52,240 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 08:18:52,241 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 08:18:52,241 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 08:18:52,242 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 08:18:52,242 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 08:18:52,242 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 08:18:52,242 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 08:18:52,242 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 08:18:52,243 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 08:18:52,243 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 08:18:52,243 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1feb5daa-21a2-4122-89ab-d3877e8b766d/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-09 08:18:52,251 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 08:18:52,251 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 08:18:52,252 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 08:18:52,252 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 08:18:52,252 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 08:18:52,252 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-09 08:18:52,252 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-09 08:18:52,253 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-09 08:18:52,253 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-09 08:18:52,253 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-09 08:18:52,253 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-09 08:18:52,253 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 08:18:52,253 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 08:18:52,253 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 08:18:52,253 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 08:18:52,253 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 08:18:52,253 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 08:18:52,253 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-09 08:18:52,253 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-09 08:18:52,254 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-09 08:18:52,254 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 08:18:52,254 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 08:18:52,254 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-09 08:18:52,254 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 08:18:52,254 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-09 08:18:52,254 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 08:18:52,254 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 08:18:52,254 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-09 08:18:52,254 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 08:18:52,254 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 08:18:52,254 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-09 08:18:52,255 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-09 08:18:52,255 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_1feb5daa-21a2-4122-89ab-d3877e8b766d/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ed241b7ea3188deab01745f11227ce75decf7bc [2018-12-09 08:18:52,272 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 08:18:52,279 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 08:18:52,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 08:18:52,282 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 08:18:52,282 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 08:18:52,282 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1feb5daa-21a2-4122-89ab-d3877e8b766d/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/subseq-alloca_true-valid-memsafety_true-termination.i [2018-12-09 08:18:52,318 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1feb5daa-21a2-4122-89ab-d3877e8b766d/bin-2019/uautomizer/data/67616e768/700eea4e980441c1a57f387fed6f881e/FLAG77721e441 [2018-12-09 08:18:52,745 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 08:18:52,746 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1feb5daa-21a2-4122-89ab-d3877e8b766d/sv-benchmarks/c/array-memsafety/subseq-alloca_true-valid-memsafety_true-termination.i [2018-12-09 08:18:52,751 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1feb5daa-21a2-4122-89ab-d3877e8b766d/bin-2019/uautomizer/data/67616e768/700eea4e980441c1a57f387fed6f881e/FLAG77721e441 [2018-12-09 08:18:53,154 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1feb5daa-21a2-4122-89ab-d3877e8b766d/bin-2019/uautomizer/data/67616e768/700eea4e980441c1a57f387fed6f881e [2018-12-09 08:18:53,156 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 08:18:53,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 08:18:53,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 08:18:53,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 08:18:53,159 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 08:18:53,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:18:53" (1/1) ... [2018-12-09 08:18:53,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e809d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:18:53, skipping insertion in model container [2018-12-09 08:18:53,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:18:53" (1/1) ... [2018-12-09 08:18:53,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 08:18:53,183 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 08:18:53,322 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 08:18:53,329 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 08:18:53,388 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 08:18:53,416 INFO L195 MainTranslator]: Completed translation [2018-12-09 08:18:53,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:18:53 WrapperNode [2018-12-09 08:18:53,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 08:18:53,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 08:18:53,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 08:18:53,417 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 08:18:53,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:18:53" (1/1) ... [2018-12-09 08:18:53,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:18:53" (1/1) ... [2018-12-09 08:18:53,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 08:18:53,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 08:18:53,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 08:18:53,442 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 08:18:53,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:18:53" (1/1) ... [2018-12-09 08:18:53,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:18:53" (1/1) ... [2018-12-09 08:18:53,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:18:53" (1/1) ... [2018-12-09 08:18:53,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:18:53" (1/1) ... [2018-12-09 08:18:53,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:18:53" (1/1) ... [2018-12-09 08:18:53,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:18:53" (1/1) ... [2018-12-09 08:18:53,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:18:53" (1/1) ... [2018-12-09 08:18:53,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 08:18:53,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 08:18:53,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 08:18:53,456 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 08:18:53,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:18:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1feb5daa-21a2-4122-89ab-d3877e8b766d/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 08:18:53,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 08:18:53,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 08:18:53,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 08:18:53,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 08:18:53,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 08:18:53,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 08:18:53,617 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 08:18:53,617 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-09 08:18:53,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:18:53 BoogieIcfgContainer [2018-12-09 08:18:53,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 08:18:53,618 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-09 08:18:53,618 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-09 08:18:53,621 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-09 08:18:53,621 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 08:18:53,622 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.12 08:18:53" (1/3) ... [2018-12-09 08:18:53,622 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d6b4934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 08:18:53, skipping insertion in model container [2018-12-09 08:18:53,623 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 08:18:53,623 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:18:53" (2/3) ... [2018-12-09 08:18:53,623 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d6b4934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 08:18:53, skipping insertion in model container [2018-12-09 08:18:53,623 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 08:18:53,623 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:18:53" (3/3) ... [2018-12-09 08:18:53,625 INFO L375 chiAutomizerObserver]: Analyzing ICFG subseq-alloca_true-valid-memsafety_true-termination.i [2018-12-09 08:18:53,657 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 08:18:53,657 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-09 08:18:53,657 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-09 08:18:53,657 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-09 08:18:53,657 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 08:18:53,657 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 08:18:53,657 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-09 08:18:53,657 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 08:18:53,658 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-09 08:18:53,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-12-09 08:18:53,679 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-12-09 08:18:53,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 08:18:53,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 08:18:53,683 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-09 08:18:53,683 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-12-09 08:18:53,684 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-09 08:18:53,684 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-12-09 08:18:53,685 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-12-09 08:18:53,685 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 08:18:53,685 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 08:18:53,685 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-09 08:18:53,686 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-12-09 08:18:53,692 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 10#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 4#L556true assume !(main_~length1~0 < 1); 7#L556-2true assume !(main_~length2~0 < 1); 3#L559-1true call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.alloc(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);subseq_#in~s.base, subseq_#in~s.offset, subseq_#in~t.base, subseq_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc subseq_#res;havoc subseq_#t~mem5, subseq_#t~mem6, subseq_#t~post7.base, subseq_#t~post7.offset, subseq_#t~post8.base, subseq_#t~post8.offset, subseq_#t~mem2, subseq_#t~mem3, subseq_#t~short4, subseq_#t~mem9, subseq_~s.base, subseq_~s.offset, subseq_~t.base, subseq_~t.offset, subseq_~ps~0.base, subseq_~ps~0.offset, subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~s.base, subseq_~s.offset := subseq_#in~s.base, subseq_#in~s.offset;subseq_~t.base, subseq_~t.offset := subseq_#in~t.base, subseq_#in~t.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_~s.base, subseq_~s.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_~t.base, subseq_~t.offset; 16#L544-5true [2018-12-09 08:18:53,693 INFO L796 eck$LassoCheckResult]: Loop: 16#L544-5true call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 8#L544-1true assume subseq_#t~short4;call subseq_#t~mem3 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem3; 12#L544-3true assume !!subseq_#t~short4;havoc subseq_#t~mem3;havoc subseq_#t~short4;havoc subseq_#t~mem2;call subseq_#t~mem5 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);call subseq_#t~mem6 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1); 5#L545true assume subseq_#t~mem5 == subseq_#t~mem6;havoc subseq_#t~mem6;havoc subseq_#t~mem5;subseq_#t~post7.base, subseq_#t~post7.offset := subseq_~ps~0.base, subseq_~ps~0.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_#t~post7.base, 1 + subseq_#t~post7.offset;havoc subseq_#t~post7.base, subseq_#t~post7.offset; 9#L545-2true subseq_#t~post8.base, subseq_#t~post8.offset := subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_#t~post8.base, 1 + subseq_#t~post8.offset;havoc subseq_#t~post8.base, subseq_#t~post8.offset; 16#L544-5true [2018-12-09 08:18:53,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:18:53,697 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2018-12-09 08:18:53,699 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 08:18:53,700 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 08:18:53,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:18:53,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:18:53,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:18:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:18:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:18:53,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:18:53,786 INFO L82 PathProgramCache]: Analyzing trace with hash 47815647, now seen corresponding path program 1 times [2018-12-09 08:18:53,786 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 08:18:53,786 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 08:18:53,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:18:53,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:18:53,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:18:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:18:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:18:53,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:18:53,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1594114490, now seen corresponding path program 1 times [2018-12-09 08:18:53,803 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 08:18:53,803 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 08:18:53,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:18:53,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:18:53,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:18:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:18:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:18:54,125 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 88 [2018-12-09 08:18:54,191 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 08:18:54,192 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 08:18:54,192 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 08:18:54,192 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 08:18:54,192 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 08:18:54,192 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 08:18:54,192 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 08:18:54,192 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 08:18:54,193 INFO L131 ssoRankerPreferences]: Filename of dumped script: subseq-alloca_true-valid-memsafety_true-termination.i_Iteration1_Lasso [2018-12-09 08:18:54,193 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 08:18:54,193 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 08:18:54,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,424 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2018-12-09 08:18:54,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:18:54,848 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 08:18:54,851 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 08:18:54,852 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 08:18:54,853 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 08:18:54,853 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 08:18:54,854 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 08:18:54,854 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 08:18:54,854 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 08:18:54,855 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 08:18:54,855 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 08:18:54,856 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 08:18:54,857 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 08:18:54,857 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 08:18:54,857 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-12-09 08:18:54,857 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 08:18:54,857 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 08:18:54,860 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-12-09 08:18:54,860 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 08:18:54,878 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 08:18:54,879 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 08:18:54,879 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 08:18:54,880 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-12-09 08:18:54,880 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 08:18:54,880 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 08:18:54,882 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-12-09 08:18:54,883 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 08:18:54,896 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 08:18:54,897 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 08:18:54,897 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 08:18:54,898 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 08:18:54,898 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 08:18:54,898 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 08:18:54,903 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 08:18:54,903 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 08:18:54,936 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 08:18:54,975 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-12-09 08:18:54,975 INFO L444 ModelExtractionUtils]: 42 out of 49 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-12-09 08:18:54,977 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 08:18:54,978 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-12-09 08:18:54,978 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 08:18:54,979 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_subseq_~pt~0.offset, v_rep(select #length ULTIMATE.start_subseq_~pt~0.base)_1) = -1*ULTIMATE.start_subseq_~pt~0.offset + 1*v_rep(select #length ULTIMATE.start_subseq_~pt~0.base)_1 Supporting invariants [] [2018-12-09 08:18:55,017 INFO L297 tatePredicateManager]: 16 out of 16 supporting invariants were superfluous and have been removed [2018-12-09 08:18:55,023 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 08:18:55,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:18:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:18:55,053 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:18:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:18:55,067 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:18:55,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:18:55,083 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-09 08:18:55,084 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 4 states. [2018-12-09 08:18:55,114 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 4 states. Result 37 states and 50 transitions. Complement of second has 7 states. [2018-12-09 08:18:55,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-09 08:18:55,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 08:18:55,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2018-12-09 08:18:55,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 5 letters. Loop has 5 letters. [2018-12-09 08:18:55,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 08:18:55,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 10 letters. Loop has 5 letters. [2018-12-09 08:18:55,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 08:18:55,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 5 letters. Loop has 10 letters. [2018-12-09 08:18:55,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 08:18:55,119 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 50 transitions. [2018-12-09 08:18:55,120 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 08:18:55,122 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 0 states and 0 transitions. [2018-12-09 08:18:55,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-09 08:18:55,122 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-09 08:18:55,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-09 08:18:55,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 08:18:55,123 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 08:18:55,123 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 08:18:55,123 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 08:18:55,123 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-09 08:18:55,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-09 08:18:55,123 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 08:18:55,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-09 08:18:55,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.12 08:18:55 BoogieIcfgContainer [2018-12-09 08:18:55,127 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-09 08:18:55,127 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 08:18:55,127 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 08:18:55,127 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 08:18:55,127 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:18:53" (3/4) ... [2018-12-09 08:18:55,129 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 08:18:55,129 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 08:18:55,130 INFO L168 Benchmark]: Toolchain (without parser) took 1973.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 950.7 MB in the beginning and 968.9 MB in the end (delta: -18.2 MB). Peak memory consumption was 80.9 MB. Max. memory is 11.5 GB. [2018-12-09 08:18:55,130 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 08:18:55,131 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 950.7 MB in the beginning and 1.1 GB in the end (delta: -132.4 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-12-09 08:18:55,131 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 08:18:55,131 INFO L168 Benchmark]: Boogie Preprocessor took 13.97 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 08:18:55,132 INFO L168 Benchmark]: RCFGBuilder took 161.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-12-09 08:18:55,132 INFO L168 Benchmark]: BuchiAutomizer took 1508.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 968.9 MB in the end (delta: 89.6 MB). Peak memory consumption was 89.6 MB. Max. memory is 11.5 GB. [2018-12-09 08:18:55,132 INFO L168 Benchmark]: Witness Printer took 2.62 ms. Allocated memory is still 1.1 GB. Free memory is still 968.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 08:18:55,134 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 259.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 950.7 MB in the beginning and 1.1 GB in the end (delta: -132.4 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.97 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 161.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1508.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 968.9 MB in the end (delta: 89.6 MB). Peak memory consumption was 89.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.62 ms. Allocated memory is still 1.1 GB. Free memory is still 968.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * pt + unknown-#length-unknown[pt] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 16 SDtfs, 19 SDslu, 11 SDs, 0 SdLazy, 10 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital220 mio100 ax100 hnf99 lsp97 ukn86 mio100 lsp46 div100 bol100 ite100 ukn100 eq196 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 5 VariablesLoop: 4 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...